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我的XAML看起来是这样的:编程方式创建WPF DataGrid列未绑定
<DataGrid Name="gridBasket" AutoGenerateColumns="False">
<DataGrid.Columns>
<DataGridTextColumn Binding="{Binding BasketName}">
</DataGridTextColumn>
</DataGrid.Columns>
</DataGrid>
而且我的课是这样的:
public class Fruit
{
public int FruitId { get; set; }
public string FruitName { get; set; }
public int FruitCount { get; set; }
}
public class Basket
{
public int BasketId { get; set; }
public string BasketName { get; set; }
public ObservableCollection<Fruit> Fruits { get; set; }
}
public class Shop
{
public static ObservableCollection<Basket> Bind()
{
return new ObservableCollection<Basket>
{
new Basket { BasketId = 1, BasketName = "Gold",
Fruits = new ObservableCollection<Fruit>
{
new Fruit { FruitId = 1, FruitName = "Oranges", FruitCount = 10 },
new Fruit { FruitId = 2, FruitName = "Apples", FruitCount = 8 },
new Fruit { FruitId = 3, FruitName = "Bananas", FruitCount = 6 }
}
},
new Basket { BasketId = 2, BasketName = "Silver",
Fruits = new ObservableCollection<Fruit>
{
new Fruit { FruitId = 1, FruitName = "Oranges", FruitCount = 5 },
new Fruit { FruitId = 2, FruitName = "Apples", FruitCount = 4 },
new Fruit { FruitId = 3, FruitName = "Bananas", FruitCount = 3 }
}
}
};
}
}
在我后面的代码我试图动态地添加列并设置这些动态列绑定到嵌套的集合属性。
private void LoadData()
{
gridBasket.AutoGenerateColumns = false;
ObservableCollection<DemoBEL.Basket> bColl = DemoBEL.Shop.Bind();
gridBasket.ItemsSource = bColl;
int i = 0;
foreach (DemoBEL.Fruit fObj in bColl[0].Fruits)
{
gridBasket.Columns.Add(AddColumn(i, fObj.FruitName));
i++;
}
}
private DataGridTextColumn AddColumn(int i, string propName)
{
DataGridTextColumn tc = new DataGridTextColumn();
tc.Header = propName;
String binding = String.Format("{{Binding Path=Fruits[{0}].{1}}}", 0, "FruitCount");
Binding tcBinding = new Binding(binding);
tc.Binding = tcBinding;
return tc;
}
计数即将变空。但是,如果我把固定值相同的绑定,计数开始出现。我应该做些什么改变,以便每个水果的数量开始出现在标题中指定水果下的数据网格中。
为什么你不希望使用绑定?动态创建的列和数据绑定不是相互排斥的概念。 –
@MarkFeldman只要我从所提供的课程获得期望的输出,我就愿意使用任何东西。我只需要一个正确的方向。 – nav
有一个很好的答案显示如何做到这一点[这里](http://stackoverflow.com/questions/320089/how-do-i-bind-a-wpf-datagrid-to-a-variable-number-of - 列),还有一篇关于它的文章[这里](http://www.codeproject.com/Tips/676530/How-to-Add-Columns-to-a-DataGri),它使用了类似的技术。 –